Temporary disable saving an object into pattrstorage

Hi,
Is there a way to temporary not save an object into a pattrstorage ?
I have tried the active 0 message but it still save the object’s state.
I am using autopattr linked to 5 objects in a bpatcher and at some point I don’t want to save one of these 5 objects.
Maybe I should use someone else than autopattr ?
thanks